package cn.tedu;

import java.sql.*;

public class Demo03 {
    public static void main(String[] args) throws SQLException {
        Connection conn= DriverManager.getConnection("jdbc:mysql://localhost:3306/empdb?characterEncoding=utf8&serverTimezone=Asia/Shanghai&useSSL=false","root","root");
        Statement s=conn.createStatement();
        //执行插入数据的SQL语句
        //s.executeUpdate("insert into emp(name) values('Tom')");
        //执行修改数据的SQL语句
        //s.executeUpdate("update emp set name='Jerrt' where name='Tom'");
        //执行删除数据的SQL语句
        //s.executeUpdate("delete from emp  where name='Jerrt'");
        ResultSet rs=s.executeQuery("select name , sal , job from emp");
        while(rs.next()){
            String name = rs.getString("name");
            double sal=rs.getDouble("sal");
            String job=rs.getString("job");
            System.out.println(name+":"+sal+":"+job);
        }
        conn.close();
    }
}
